The most common reason: you changed your withholding or had less tax taken out
Your refund is smaller this year because less money was withheld from your paychecks or other income during 2024. Withholding is the amount your employer (or you, if self-employed) sends to the IRS before you file your return. If less went in, less comes back out.
This happens most often when you fill out a new W-4 form at work. Many people adjust their W-4 after a major life change — getting married, having a child, taking a second job, or paying off a large debt. Each change shifts how much tax your employer holds from each paycheck. A lower withholding means more money in your pocket during the year, but a smaller refund in April.
You may not have deliberately changed anything, though. If your employer updated their payroll system, changed how they process W-4s, or if you received a raise that pushed you into a different tax bracket, your withholding could have shifted without you knowing.
Key Takeaways
- A smaller refund usually means less tax was withheld from your paychecks during the year, which also means you had more take-home pay monthly.
- Changes to your W-4 form — whether you made them or your employer did — directly affect how much the IRS holds and how much you get back.
- Income changes like a raise, a second job, or self-employment earnings can lower your refund if you did not adjust your withholding to match.
- Tax law changes, credits you no longer may have access to for, and deductions you cannot claim this year will also reduce what you get back.
- A smaller refund is not always bad — it means you had more of your own money throughout the year instead of lending it to the government interest-free.
You earned more income this year
If you received a raise, worked more hours, started a side job, or had investment income, your total income went up. The IRS taxes higher income at higher rates. Even if your withholding stayed the same dollar amount, it may not be enough to cover the tax on your additional earnings.
This is especially true if you took on self-employment income — from freelancing, gig work, or a small business. Self-employed people do not have an employer withholding taxes automatically. If you did not make quarterly estimated tax payments to the IRS, you will owe more when you file, which shrinks your refund or turns it into a bill.
A spouse returning to work or working more hours also increases household income. If you file jointly and did not update your combined W-4s to reflect both incomes, you may not have withheld enough.
You lost a tax credit or no longer meet the requirements
Tax credits directly reduce the amount of tax you owe. The most common ones are the Child Tax Credit (for children under 17), the Earned Income Tax Credit (EITC, for lower-income workers), and the Child and Dependent Care Credit (for childcare expenses). If you received one of these last year and do not this year, your refund will be noticeably smaller.
You might lose a credit because your income rose above the limit, your child turned 18, you no longer pay for childcare, or your filing status changed. Some credits phase out gradually as income increases, so even a modest raise can reduce the credit amount.
The Child Tax Credit is worth up to $2,000 per child. The EITC can be worth several thousand dollars for families with lower incomes. Losing either one will significantly shrink your refund.
Your deductions changed or you switched to the standard deduction
A deduction reduces the income the IRS taxes you on. Most people use the standard deduction — a fixed amount that depends on your filing status. For 2024, the standard deduction is higher than it was in 2023, which should actually increase refunds for most people. But if you used to itemize deductions (list out mortgage interest, property taxes, charitable donations, and medical expenses) and switched to the standard deduction, you may be claiming less in deductions overall.
You might switch to the standard deduction if you paid off your mortgage, moved to a state with lower property taxes, or straightforward had fewer deductible expenses. You might also switch if the standard deduction rose enough that it now exceeds what you would itemize.
Fewer deductions mean more of your income is taxable, which means a smaller refund if your withholding did not change.
Tax laws changed or a temporary benefit expired
Congress sometimes passes temporary tax breaks that expire after a set number of years. If you benefited from one last year and it is no longer available, your tax bill goes up and your refund goes down.
For example, some pandemic-related credits and deductions have already expired. Enhanced child tax credits that were in place for a few years are no longer available. If you were counting on a break that is no longer there, your refund will be smaller.
Tax law also changes in other ways — the IRS adjusts income brackets, standard deduction amounts, and credit limits each year for inflation. These adjustments usually help, but they can work against you if your income or circumstances changed in a way that interacts badly with the new brackets.
You had taxes withheld from unemployment, Social Security, or other benefits
If you received unemployment benefits, Social Security, or other government payments in 2024, you may have asked to have taxes withheld from those payments. If you did, that withholding counts toward your total tax bill, just like withholding from a paycheck. If you withheld less this year than last year, your refund will be smaller.
Some people intentionally reduce withholding from benefits to have more cash on hand, then accept a smaller refund. Others reduce it by accident — for instance, if you returned to work and forgot to update your withholding elections on your benefits.
You claimed fewer dependents or your filing status changed
If you got divorced, separated, or your custody situation changed, your filing status or the number of dependents you can claim may have shifted. Each dependent you claim reduces your taxable income. Fewer dependents means a higher tax bill and a smaller refund.
Similarly, if a dependent aged out (turned 18 or 24 if in school), you can no longer claim them. If a parent or relative you were supporting moved or became self-sufficient, that also removes a dependent from your return.
These changes are often unavoidable, but they do directly affect your refund size.
Frequently Asked Questions
Is a smaller refund bad?
Not necessarily. A smaller refund means you had more of your own money in your paychecks throughout the year instead of the government holding it. Many people prefer to adjust their withholding so their refund is small or zero — that way they earn interest on their money or use it for expenses, rather than giving the IRS an interest-free loan.
What if my refund turned into a bill I owe?
This happens when your total tax bill is higher than what was withheld. Common causes are self-employment income without quarterly payments, a large raise without withholding adjustment, or losing a major credit. You can pay the bill in full, set up a payment plan with the IRS, or adjust your 2025 withholding so you do not owe again next year.
Can I fix my withholding for next year?
Yes. Fill out a new W-4 form at work and give it to your payroll department. The IRS has a withholding calculator on irs.gov that walks you through the form. If you are self-employed, you can make quarterly estimated tax payments, or you can increase your withholding if you have a W-2 job as well.
Should I claim zero allowances to get a bigger refund?
Claiming zero allowances on your W-4 withholds more tax, which gives you a bigger refund — but it also means less money in your paychecks. It is better to adjust your withholding so your refund is small, because that means you had the money when you needed it. Use the IRS withholding calculator to find the right amount for your situation.
Why did my refund go down even though I did not change anything?
Your employer may have updated their payroll system, you may have received a raise that was not reflected in your W-4, or tax law changes may have affected you. It is also possible your withholding was always slightly off and caught up with you this year. Review your pay stubs from 2024 to see if the withholding amount changed during the year.